In this category, we consider any organization's pre-existing systems that predate the joining of the network. As such, these systems have their own concepts and paradigms, and we will require a form of abstraction to reconcile the two worlds.
Enterprise system integration
by Anthony O'Dowd, Venkatraman Ramakrishna, Petr Novotny, Nitin Gaur, Luc Desro
Hands-On Blockchain with Hyperledger
- Title Page
- Copyright and Credits
- Packt Upsell
- Foreword
- Contributors
- Preface
- Blockchain - Enterprise and Industry Perspective
- Defining the terms – what is a blockchain?
- Four core building blocks of blockchain framworks
- Fundamentals of the secure transaction processing protocol
- Where blockchain technology has been and where it's going
- Industries putting blockchain technology to work
- Blockchain in the enterprise
- Enterprise design principles
- Business considerations for choosing a blockchain framework
- Technology considerations for choosing a blockchain framework
- Enterprise integration and designing for extensibility
- Other considerations
- Summary
- Exploring Hyperledger Fabric
- Building on the foundations of open computing
- Hyperledger frameworks, tools, and building blocks
- Hyperledger Fabric component design
- Hyperledger Fabric – the journey of a sample transaction
- Hyperledger Fabric explored
- Understanding governance in business networks powered by blockchain
- Summary
- Setting the Stage with a Business Scenario
- Trading and letter of credit
- Business scenario and use case
- Setting up the development environment
- Network components' configuration files
- Launching a sample trade network
- Summary
- Designing a Data and Transaction Model with Golang
- Exposing Network Assets and Transactions
- Building a complete application
- The nature of a Hyperledger Fabric application
- Building the application
- Middleware – wrapping and driving the chaincode
- Installation of tools and dependencies
- Creating and running the middleware
- Network configuration
- Endorsement policy
- User records
- Client registration and enrollment
- Creating a channel
- Joining a channel
- Installation of chaincode
- Instantiation of chaincode
- Invoking the chaincode
- Querying the chaincode
- Completing the loop – subscribing to blockchain events
- Putting it all together
- User application – exporting the service and API
- Integration with existing systems and processes
- Summary
- Building a complete application
- Business Networks
- A busy world of purposeful activity
- Defining business networks
- Introducing participants
- Introducing assets
- Introducing transactions
- Change as a fundamental concept
- Transaction definition and instance
- Implicit and explicit transactions
- The importance of contracts
- Signatures
- Smart contracts for multi-party transaction processing
- Digital transaction processing
- Initiating transactions
- Transaction history
- Transaction streams
- Separating transactions into different business networks
- Transaction history and asset states
- A business network as a history of transactions
- Regulators and business networks
- Discussing events from the perspective of designing a business network using Composer
- Implementing a business network
- Summary
- A Business Network Example
- The letter of credit sample
- Installing the sample
- Running the sample
- Step 1 – preparing to request a letter of credit
- Step 2 – requesting a letter of credit
- Step 3 – importing bank approval
- Step 4 – exporting bank approval
- Step 5 – letter received by exporter
- Step 6 – shipment
- Step 7 – goods received
- Step 8 – payment
- Step 9 – closing the letter
- Step 10 – Bob receives payment
- Recapping the process
- Analyzing the letter of credit process
- A description of the business network
- A model of the business network
- Examining the live network
- Creating business network APIs
- Summary
- The letter of credit sample
- Agility in a Blockchain Network
- Life in a Blockchain Network
- Modifying or upgrading a Hyperledger Fabric application
- Fabric blockchain and application life cycle
- Channel configuration updates
- Prerequisites for adding a new organization to the network
- Generating network cryptographic material
- Generating channel artifacts
- Generating the configuration and network components in one operation
- Launching the network components for the new organization
- Updating the channel configuration
- Adding the new organization to the network
- Smart contract and policy updates
- Platform upgrades
- System monitoring and performance
- Summary
- Modifying or upgrading a Hyperledger Fabric application
- Governance, Necessary Evil of Regulated Industries
- Hyperledger Fabric Security
- Hyperledger Fabric design goals impacting security
- Hyperledger Fabric architecture 
- Network bootstrap and governance – the first step towards security
- Strong identities – the key to the security of the Hyperledger Fabric network
- Chaincode security
- Common threats and how Hyperledger Fabric mitigates them 
- Hyperledger Fabric and Quantum Computing
- General data protection regulation (GDPR) considerations
- Summary
- The Future of Blockchain and the Challenges Ahead
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Enterprise system integration
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